Mobile Extension - Callback to Mobile Phone
Description
Callback to Mobile Phone allows the user to make an incoming call to a system then hang up before
the system answers (like a one ring call), then the system calls back to the calling Mobile Phone using
a pre-programmed number. The advantage is to reduce Mobile Phone charges for calls on a mobile
extension system.
Office
1. One ring
2. Call back
3. Dial
5. Conversation
4. Outgoing
Figure 1-29 Example - Callback to Mobile Phone
After receiving a call back on a Mobile Phone, the user can call another extension or make an
outgoing call via the system using the mobile extension function.
Conditions
• Mobile Extension must be programmed for this feature to work.
• In the Callback to Mobile Phone feature set PRG 15-22-04 to 1. If the Mobile Phone user continues
to ring over the time set in PRG 22-01-12, the system answers the call as a normal Mobile
Extension call.
• Callback to Mobile Phone will not proceed and no retry is made if all trunks are busy when trying to
callback.
• Callback trunk routing follows PRG 15-22-03 setting. When set 0 (Normal trunk access code), ARS
also can be used.
• If Mobile Extension does not answer the Callback within time set in PRG 20-01-16, Callback will
stop. If answered the within the Callback time, the user hears an extension dial tone. A splash tone
is not heard.
• If the system receives a "Disconnect" from the far end after a Callback is made, Callback will stop.
• When Calling party number is used, Callback follows the PRG 21-19-01 outgoing call setting of the
Mobile Extension which made the outgoing call.
• The Callback to Mobile Phone feature is not supported when using an analog trunk.
• If Flexible ringing is set, the Callback to Mobile Phone feature works in any type of PRG 22-02-01
trunk setting. If Flexible ringing is not set, the Callback to Mobile Phone feature does not work if the
incoming call type is “DID/DISA”.
SL1000/SL1100
ISSUE 2.0
1-494
Mobile Extension - Callback to Mobile Phone
M
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